The letter of apology acknowledged he used "poor judgment" and was an "awkward attempt" to be humorous.

"I wanted to personally apologize to this Court and my lawyers for the aggravation that my recent postings have caused," Shkreli's letter reads. "I understand now that some may have read my comments about Mrs. Clinton as threatening, when that was never my intention when making those comments."

"I used poor judgment but never intended to cause alarm or promote any act of violence whatsoever," he claimed.